UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support OK, how did that happen?

Private forum, if you google clubadventist and Hanif it shows up in google?

Sup with that?

Wild guess since you don't use the portal.
From the admin guide:
Note: The content within RSS feeds will be available to anyone with the URL to the feed, so we do not recommend creating an RSS feed that queries content from a private forum.

Did not use the RSS feed, unless that just happens someplace.

Has it always been a Private forum? How old is the thread that Google crawled?

the forum was created yesterday. Does adsense crawlers feed google?

FWIW, google has the title, but not the content. It knows the page is there, by name, but doesn't seem to have read the contents of it as the page isn't in google's cache; least not as I am checking it right now. I've no idea what this all means but I'd be looking at permissions, any mods you have, and the presence of any ads in that forum.